softshell
/ˈsɒftˌʃel/(亦作softshell turtle)
noun
1- a freshwater turtle with a flattened leathery shell, native to Asia, Africa, and North America（产于亚、非、北美的）（淡水）软壳龟, 鳖。
1.1
- Family Trionychidae: several genera and many species, including the spiny softshell (Apalone or Trionyx spinifera) of North America.鳖科：数属, 多种, 包括北美的刺鳖（拉丁名Apalone或Trionyx spinifera）。